CA2999894C - Ensemble reflecteur de neutrons pour une deviation spectrale dynamique - Google Patents

Ensemble reflecteur de neutrons pour une deviation spectrale dynamique

Info

Publication number
CA2999894C
CA2999894C CA2999894A CA2999894A CA2999894C CA 2999894 C CA2999894 C CA 2999894C CA 2999894 A CA2999894 A CA 2999894A CA 2999894 A CA2999894 A CA 2999894A CA 2999894 C CA2999894 C CA 2999894C
Authority
CA
Canada
Prior art keywords
neutron
reflector
neutron reflector
assembly
flowing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CA2999894A
Other languages
English (en)
Other versions
CA2999894A1 (fr
Inventor
Jr. Cisneros Anselmo T.
Charles Gregory Freeman
Christopher J. Johns
Kevin Kramer
Jeffery F. Latkowski
Original Assignee
TerraPower LLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by TerraPower LLC filed Critical TerraPower LLC
Publication of CA2999894A1 publication Critical patent/CA2999894A1/fr
Application granted granted Critical
Publication of CA2999894C publication Critical patent/CA2999894C/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C7/00—Control of nuclear reaction
    • G21C7/28—Control of nuclear reaction by displacement of the reflector or parts thereof
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C1/00—Reactor types
    • G21C1/02—Fast fission reactors, i.e. reactors not using a moderator ; Metal cooled reactors; Fast breeders
    • G21C1/022—Fast fission reactors, i.e. reactors not using a moderator ; Metal cooled reactors; Fast breeders characterised by the design or properties of the core
    • G21C1/026—Reactors not needing refuelling, i.e. reactors of the type breed-and-burn, e.g. travelling or deflagration wave reactors or seed-blanket reactors
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C11/00—Shielding structurally associated with the reactor
    • G21C11/06—Reflecting shields, i.e. for minimising loss of neutrons
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C3/00—Reactor fuel elements and their assemblies; Selection of substances for use as reactor fuel elements
    • G21C3/42—Selection of substances for use as reactor fuel
    • G21C3/44—Fluid or fluent reactor fuel
    • G21C3/54—Fused salt, oxide or hydroxide compositions
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C7/00—Control of nuclear reaction
    • G21C7/06—Control of nuclear reaction by application of neutron-absorbing material, i.e. material with absorption cross-section very much in excess of reflection cross-section
    • G21C7/22—Control of nuclear reaction by application of neutron-absorbing material, i.e. material with absorption cross-section very much in excess of reflection cross-section by displacement of a fluid or fluent neutron-absorbing material, e.g. by adding neutron-absorbing material to the coolant
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C7/00—Control of nuclear reaction
    • G21C7/26—Control of nuclear reaction by displacement of the moderator or parts thereof by changing the moderator concentration
    • G21C7/27—Spectral shift control
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Monitoring And Testing Of Nuclear Reactors (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)

Abstract

La présente invention concerne un ensemble réflecteur dynamique de neutrons destiné à un réacteur rapide « à onde progressive » qui ajuste progressivement le spectre de neutrons et la réactivité dans un cur de réacteur. La composition des matériaux dans le réflecteur dynamique de neutrons peut être ajustée pour changer les niveaux de réflectivité des neutrons, ou pour introduire des caractéristiques de modération ou d'absorption de neutrons. Le réflecteur de neutrons dynamique peut contenir un liquide de réflexion en circulation dont le volume et/ou la densité peuvent être ajustés. Des éléments submersibles peuvent être insérés sélectivement dans le liquide de réflexion en circulation pour modifier son volume et introduire d'autres effets de modification des neutrons tels que la modération ou l'absorption. L'insertion sélective des éléments submersibles permet la concentration des effets de modification des neutrons dans une partie sélectionnée du cur du réacteur. Le liquide de réflexion en circulation peut également agir comme un circuit de refroidissement secondaire en échangeant de la chaleur avec le sel de combustible fondu.
CA2999894A 2015-09-30 2016-09-30 Ensemble reflecteur de neutrons pour une deviation spectrale dynamique Active CA2999894C (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US201562234889P 2015-09-30 2015-09-30
US62/234,889 2015-09-30
US201662337235P 2016-05-16 2016-05-16
US62/337,235 2016-05-16
PCT/US2016/055001 WO2017059360A1 (fr) 2015-09-30 2016-09-30 Ensemble réflecteur de neutrons pour une déviation spectrale dynamique

Publications (2)

Publication Number Publication Date
CA2999894A1 CA2999894A1 (fr) 2017-04-06
CA2999894C true CA2999894C (fr) 2024-09-10

Family

ID=57286786

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2999894A Active CA2999894C (fr) 2015-09-30 2016-09-30 Ensemble reflecteur de neutrons pour une deviation spectrale dynamique

Country Status (5)

Country Link
US (1) US10734122B2 (fr)
EP (1) EP3357068B1 (fr)
CN (1) CN108352200B (fr)
CA (1) CA2999894C (fr)
WO (1) WO2017059360A1 (fr)

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EP3542371B1 (fr) 2016-11-15 2021-03-03 TerraPower, LLC Gestion thermique de réacteurs nucléaires à combustible fondu
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CN108932984B (zh) * 2018-09-13 2021-06-29 中国核动力研究设计院 一种双流体熔盐快堆溢流罐系统及其控制方法
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CN114651311A (zh) 2019-12-23 2022-06-21 泰拉能源公司 熔融燃料反应堆和用于熔融燃料反应堆的孔环板
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CN113674874B (zh) * 2021-07-13 2024-09-10 中国核动力研究设计院 一种延长堆芯寿期的堆芯结构及运行方法
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CN114496314B (zh) * 2022-02-17 2024-02-13 中国核动力研究设计院 一种快中子热中子同心圆式分区的超高通量反应堆堆芯
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WO2025015124A2 (fr) 2023-07-11 2025-01-16 Abilene Christian University Système de commande de niveau de fluide de réacteur nucléaire
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Also Published As

Publication number Publication date
CA2999894A1 (fr) 2017-04-06
CN108352200B (zh) 2021-11-09
US10734122B2 (en) 2020-08-04
EP3357068B1 (fr) 2020-06-17
US20170092381A1 (en) 2017-03-30
WO2017059360A1 (fr) 2017-04-06
CN108352200A (zh) 2018-07-31
EP3357068A1 (fr) 2018-08-08

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